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Because the Sputnik program ended with Sputnik 3. Albeit there was a Sputnik 40 and 41 but these were to commemorate the 40th anniversary of Sputnik 1.
First Soviet SatelliteIt was called the 'Sputnik' and was put into orbit on October 4th, 1957. The timing was 'tweaked' to mark the 40th anniversary of the Russian Revolution of 1917.
Sputnik 1 was launched on the 4th of October, 1957. The booster used by it had been used in August of that year to launch a long range missile.
1955-1957
The Explorer 1 was launched on January 31,1958 one year after the Sputnik 1,and Sputnik 11
the name of the first satellite is Sputnik
Sputnik 1 only housed some electronics, while Sputnik 2 held a dog called Laika.
Sputnik 1, the first man made object to orbit the earth. And we've been polluting like crazy up there ever since.
Not as far as anyone knows. The next launch, Sputnik 2, carried a dog called Laika.
It means it was the first sputnik.
Sputnik 1 was a Russian satellite.
Sputnik was the "family name" for a series of satellites, so there never was a satellite named only Sputnik. They all had numbers with Sputnik 1 being the first.
Because the Sputnik program ended with Sputnik 3. Albeit there was a Sputnik 40 and 41 but these were to commemorate the 40th anniversary of Sputnik 1.
Sputnik 1 was sent into orbit in 1957 by the Soviets.
Sputnik 1 Sputnik 1
Sputnik 1 and Sputnik 2 were artificial satellites that traveled around the Earth. People thought that Sputnik 1 was spying on them, but all it did was transmit a simple tracking signal for 3 weeks.
The Sputnik craft were very small, unmanned satellites. But the Sputnik 2 carried a dog called Laika into space.The first man in space was Yuri Gagarin, aboard Vostok 1.